Features

Synthesized keyboard sounds (procedural Web Audio)
Synthesized mouse click sounds (procedural Web Audio)
Desktop app via Tauri

Tech Stack

Svelte 5 + SvelteKit
Tauri (desktop)
Web Audio API (sound synthesis)
Tailwind v4

System permissions (desktop)

Sounds are driven from global keyboard and mouse hooks in the Tauri shell so they still register when another app is focused or the pointer is outside MikeBell’s window. Playback uses native audio (rodio/CPAL) so clicks and keys stay audible even when the WKWebView’s Web Audio stack is suspended (a common limitation when the window is not key). The web page alone cannot see those global events. OS privacy (TCC) still applies—this is separate from Tauri IPC.

macOS: On launch, MikeBell calls Apple’s APIs (AXIsProcessTrustedWithOptions with prompt, and CGRequestListenEventAccess when needed) so Accessibility and Input Monitoring dialogs can appear. Enable MikeBell manually under System Settings → Privacy & Security → Accessibility and Input Monitoring if needed. Dev (bun tauri dev) and the shipped .app may appear as separate entries—toggle both for each if you use both. After you turn on Input Monitoring or Accessibility, fully quit and reopen MikeBell; macOS often will not upgrade a running app’s event tap from “in-app only” to system-wide until restart.
Linux: Your user may need access to input devices (often membership in the input group or equivalent, depending on distro).
Windows: Usually works without extra steps; if listening fails, try running as administrator only as a last resort.

Development

npm run dev

To run type checks:

npm run check

License

Licensed under the GNU General Public License v3. See LICENSE for details.

TechStack

Links

Overview